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Night vision true color image acquisition method based on filtering of image intensifier

A technology of image intensifier and image acquisition, which is applied in color TV, image communication, color TV parts, etc. It can solve the problem that low-light night vision devices cannot acquire color images and achieve high-resolution effects

Inactive Publication Date: 2017-02-01
中国人民解放军陆军军官学院
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Problems solved by technology

[0007] In order to solve the defect that the low-light night vision device in the prior art cannot obtain color images, the present invention proposes a color imaging technology under night vision conditions, and coats a layer of color on the photon surface of the photocathode of the traditional image intensifier. Filter film, using the structure of the image intensifier, combined with a certain CFA interpolation algorithm, can achieve color image acquisition under night vision conditions

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  • Night vision true color image acquisition method based on filtering of image intensifier
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  • Night vision true color image acquisition method based on filtering of image intensifier

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[0019] In order for the present invention to be better understood and implemented, the following will be combined with the attached Figure 1-4 The technical solution of the present invention is described in detail.

[0020] figure 1 Shows how the image intensifier works. As shown in the figure, photoelectrons are generated when visible light irradiates the GaAs photocathode through the input light window; the photoelectrons pass through the focusing system ( figure 1 Conversion (not shown) enters the amplification system (MCP) after acceleration and focusing; photoelectrons increase energy through multiple collisions in the amplification system, and the energy-enhanced photoelectrons are finally collected by the anode (fluorescent screen) to achieve the effect of image enhancement.

[0021] Such as Figure 2-4 , a kind of night vision true-color image acquisition method based on image intensifier filtering of the present invention adopts the technical means of adding a col...

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Abstract

The invention discloses a night vision true color image acquisition method based on filtering of an image intensifier, which is mainly applied to a low-light level night vision device made by an image intensifier. A technical means of coating a layer of color filtering thin film on a photon plane of a photoelectric cathode of the image intensifier is adopted, a certain interpolation algorithm is combined, and color image acquisition in a night vision condition can be realized. compared with the prior art, the method of the invention can acquire a color image with higher resolution and better image quality in the night vision condition.

Description

technical field [0001] The invention belongs to the technical field of night vision imaging, in particular to color imaging technology under night vision conditions, in particular to a night vision true color image acquisition method based on image intensifier filtering. Background technique [0002] Usually a complete low-light night vision system includes an optical imaging lens group, a low-light image intensifier, and a post-processing system. Among them, the low-light image intensifier is a vacuum device, which is the most important core device in the low-light night vision system, and can convert the received weak image into an image suitable for human eyes. [0003] So far, there have been one generation of low-light image intensifiers, two generations of low-light image intensifiers, three generations of low-light image intensifiers and four generations of low-light image intensifiers. Different generations of low-light image intensifiers have different structures, ...

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Application Information

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IPC IPC(8): H04N9/04H04N5/225
CPCH04N23/55H04N23/54H04N23/10
Inventor 陶声祥钱立志吴海兵王曙光陈栋王炳张申浩殷希梅夏铭禹冯昌林宁全利钱昆刘桢胡春生王书宇朱建生张江辉马丽芳张敬修陈珅培魏新亮陈凯张晓龙蒋滨安余凯平周杰孙姗姗张良
Owner 中国人民解放军陆军军官学院
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